baber/WOPTO huggingface dataset:
Patent GB-269806-A (GB)
Title: Improvements in or relating to photographic processes
IPC: G03F7/038
Filed: 1926-02-04
Abstract: 269,806. Wade, H., (Wadsworth Watch Case Co.). Feb. 4, 1926. Plates and films; sensitive coatings, preparing. -A sensitive material for coating upou plates &c. comprises a synthetic resin which is a condensation product derived from benzaldehyde or formaldehyde, as by condensation with #- naphthylamine. The resin may be dissolved in acetone or benzol for coating, and may contain as a sensitizing agent a free halogen, or a halogen compound such as iodoform which will liberate halogen under the action of light. Specification 265,769 is referred to.
Patent GB-1369567-A (GB)
Title: Wall drying conduit
IPC: E04B1/70
Filed: 1972-06-13
Abstract: 1369567 Wall drying conduit E AMBOS 13 June 1972 [24 June 1971] 27552/72 Heading E1S A conduit for installation in an inclined position in a wall for aerating and drying the masonry, comprises a perforated tube 1 having a central longitudinal partition 9 carrying constricting necks 10 on one side to be located in the upper half of the conduit in use and having an opening 11 after each neck 10, so that in use air flows into the upper half of the conduit, is constricted by the necks thereby creating suction to draw moisture from the masonry, and then passes through the openings 11 and flows out through the lower half of the conduit. The tube 1 may be assembled from several spigot-and-socket jointed sections, and may have an air deflector 12 with a constricting neck positioned in its mouth 2. The deflector 12 and the partition 9 of the outer tube section may be removed, and a cartridge containing a hygroscopic material may be inserted into the tube, both the partition 9 and a pair of ribs on the cartridge being receivable in turn in a pair of diametrically opposite internal grooves in the tube.
Patent GB-265284-A (GB)
Title: Improved electric switch and plug
IPC: H01R13/703
Filed: 1925-11-03
Abstract: 265,284. McElroy, F. Nov. 3, 1925. Two - part couplings combined with electric switches. The contact pins k', k<3> of the detachable member k of the coupling form the switch contacts with which the switch arms d make connection, the other end of each arm engaging a fixed contact c. A third pin k<2> closes the switch on insertion and positively opens it on withdrawal. The switchoperating mechanism comprises a segment h pivoted at h<1> and carrying rollers j coacting with arms f mounted on the spindle e that carries the switch arms. The end of the pin k<2> engages a projection h' on the segment h and moves the switch arms, the upper arm f and a projection h<4> entering an aperture k<4> in the pin k<2>. The arm f is thus positively moved on withdrawal of the pin. A rod g sliding through a boss g<3> and pivoted to the member f with a spring g<1> ensures quick action of the switch. The pin k<2> constitutes an earthing pin for the member k.
Patent GB-942764-A (GB)
Title: Improvements in or relating to flat bags with an adhesive seal
IPC: B65D33/20
Filed: 1960-08-09
Abstract: 942,764. Paper bags. H. J. BOK. Aug. 9, 1960 [Aug. 10, 1959; Nov. 13, 1959; Dec. 1, 1959], No. 27610/60. Heading B8K. A flat bag is provided with a seal which is constituted by strips of adhesive tape separately disposed opposite each other on the outer walls of the bag in an area along and extending beyond the closing edge of the bag with their adhesive surface facing each other, the arrangement being such that closure of the bag may be effected by contacting the strips which may subsequently be separated to open the bag. The adhesive strips 1 may be extended, Fig. 4, to form pull lips 6, free of adhesive, for opening the bag, the edges of which may be seam-welded together at 9, Fig. 5. To achieve the effect of the ends of the lips being free of adhesive they may be covered with strips of other material or folded only. The length of the sealing strips may be slightly greater than the width of the bag to improve air-tightness. Fig. 11A shows pull strips 29, 30 between the walls 36 of the bag and the strips 27, 33 of adhesive tape, the pull strips in this case being pulled towards the bottom of the bag. These pull strips may be tabs, not extending the whole width of the bag. The ends of the pull strips may be folded under, or cover strip material may be used, to prevent their adherence to the bag walls. The pulling tabs may be formed so that they contain loops 68, Fig. 18B, to facilitate grasping by the fingers; or pleats may be formed in the tabs, as shown at 82, 83, Fig. 25. For certain bag contents, e.g. textiles, the opening need not be completely sealed but may have two or more pairs of short sealing strips, each with a pull tab in the middle.
Patent GB-948198-A (GB)
Title: A method and apparatus for removing liquid from wet granular material
Inventor: TAYLOR ALAN JOHN
IPC: F26B3/00
Filed: 1961-07-29
Abstract: 948,198. Drying granular material. PNEULIC Ltd. Aug. 9, 1962 [July 29, 1961], No. 27624/61. Heading F4G. In apparatus substantially as described in Specification 705,244, the upper surface layer of the granular material, which may otherwise form a seal, is physically disturbed as by a mechanical stirrer, or by blowing gaseous medium upwardly through the layer from below. The gaseous medium may be supplied to the chamber both above and below the layer so as to ensure that the medium comes into contact with the material below the layer, and so force the liquid therefrom through the foraminous bottom wall of the chamber.
Patent GB-449381-A (GB)
Title: Improvements in and relating to push-pull and like amplifying systems
IPC: H03F3/32
Filed: 1935-10-07
Abstract: 449,381. Valve amplifying circuits. RUSTON, J., 44, Ethnard Road, Peckham, and BRITISH ACOUSTIC FILMS, Ltd., 142, Wardour Street, both in London. Oct. 7, 1935, No. 27644. [Class 40 (v)] In a push-pull amplifier in which means are provided for adjusting the relative inputs to the grids of the valves, a switch is provided to reverse the phase applied to one of the valves to facilitate balancing. Fig. 1 shows the switch 9 connected in one of the secondary windings of the input transformer. In a modification, Fig. 2 (not shown), conjointly controlled potentiometers are provided across both the secondary windings. With an intervalve coupling comprising a split resistance or inductance, the switch 9 enables one of the coupling condensers to be transferred to a terminal common with the other coupling condenser. A centre tapped auto-transformer or two auto-transformers, one in each arm of the prior stage, may be used in place of the split anode impedance, Fig. 5 (not shown). Balancing is then effected in the input circuit or as shown, Fig. 4, by conjointly controlled tappings 22, 23. Fig. 6 shows the application to a duophase amplifier in which the switch 9 is included in the primary of the output transformer.
Patent GB-1478263-A (GB)
Title: Method and apparatus for packaging a container in a tubular  member
IPC: B65B9/14
Filed: 1975-07-01
Abstract: 1478263 Packaging containers M FUJIO 1 July 1975 27656/75 Heading B8C A container 38 is packaged in a tubular member 12 by concentrically aligning an elongate guide member 20 with the container 38, engaging one end of the guide member 20 with the container 38, feeding a tubular member 12 towards the guide member 20, opening the packaging member, for example by a suction unit 18, and advancing it over the end and axially along the guide member towards and over the container 38. The member 20 is advanced over the guide member 20 by engaging the trailing edges of the member 12 and pushing until the member 12 is transferred on to the container 38. As described, opposed pairs of axial grooves 30, 32 in the guide member 20 are engaged by pawls 62a of engaging means 62 which abut the upper end of member 12. Axial movement of pawls 62a advances member 12, the means 62 then moving radially outwardly and axially upwardly. Subsequent actuation of means 62 advances the packaging member 12 by means of pawls 62b and on the next actuation by pawls 62c which finally wrap the container 38. Each activation of the engaging means 62 advances a lowermost member 12 on to a container 38. Actuation of a gripping means 40 causes upward movement of the guide member 20 due to offset position of surfaces 28, 40a so as to release a packaged container 38. The driving of the gripping means 40 and engaging means 62 is effected by pairs of levers 52, 66 respectively affixed thereto and pivoted by respective pairs of cams 58, 70 rotated by meshing pairs of gears  60, 74. The guide member 20 may be hollow and supplied with compressed air to facilitate feeding of the member 12 on to the container 38. Pinching rollers 14 draw a length of wrapping material from reel 10, the desired length being cut off by means 16 prior to delivery to the guide member 20. The tubular member 12 may be heat shrunk on to the container.
Patent GB-763127-A (GB)
Title: Improvements in or relating to the recovery of gold and silver from cyanide solutions
IPC: C22B11/08
Filed: 1954-09-24
Abstract: Gold and/or silver adsorbed on an anion exchange substance as the corresponding cyanide are eluted by means of an organic solvent, such as methanol, ethanol or ethyl acetate, containing a minor proportion of an inorganic acid, preferably hydrochloric acid, and the resulting solution is distilled to remove substantially all the solvent, the precipitated gold and/or silver being separated from the residual acid e.g. by filtering through a filter press or candle filter. Distillation is preferably carried out in such manner that the temperature at a point a short distance below that at which condensation commences in the condenser is approximately 1 DEG C. above the boiling point of the solvent until distillation is substantially complete.  The operation may be carried on continuously or semi-continuously, the solution being pumped to a constant head tank from which is flows to the distillation vessel under gravity or under pressure. Specification 727,582 [Group III] is referred to.
Patent GB-1286718-A (GB)
Title: Improvements in or relating to processes of chromium plating
Inventor: BUCHANAN HARRY WINTERS
IPC: C25D5/48
Filed: 1970-06-09
Abstract: 1286718 Chromium plating H W BUCHANAN 9 June 1970[9 June 1969] 27833/70 Headings C7B and C7F An article is chromium plated and thereafter rinsed in an aqueous solution comprising; (a) an alkali metal hydrosulphite as a chromic acid reducing agent, (b) an alkaline buffer, and (c) a surfactant. The article may be of metal or of plastics material having a nickel coating.
Patent GB-1262009-A (GB)
Title: Cross-linked polymers and compositions and products based on these
Inventor: ZALEWSKI EDMUND JOSEPH
IPC: C09D179/08
Filed: 1969-06-02
Abstract: 1,262,009. Coatings. SCHENECTADY MIDLAND Ltd. 2 June, 1969 [31 May, 1968], No. 27840/69. Heading B2E. [Also in Divisions C3 and H1] Cross-linked polyamide-imides are derived from an aromatic di-isocyanate, trimellitic anhydride and trimesic acid and optionally tere- or iso-phthalic acid and an aromatic dianhydride, preferably a combination of pyromellitic and benzophenone dianhydrides. Reaction may be effected in a conventional wire enamel solvent in the presence of a catalyst e.g. a tamine or triphenyl phosphate. Various diisocyanates, dianhydrides, t-amines and solvents are specified. Insulated electrically conductive wires. One or more coats building to 0.002 to 0.01 inch can be applied to Cu, Ag, Al or steel wire by "free dip" or "die application" (as described in U.S.A. Specification 3,201,276). The varnished wires may be given a conventional top coat e.g. with a composition as described in U.S.A. Patent Specification 3,080,311, 3,141,859, 3,168,417 and 3,179,634 such as nylon/polyester, polyester/phenoplast or polyurethane/phenoplast combinations.
Patent GB-435587-A (GB)
Title: Improvements in and relating to the preservation of fruits
IPC: A23B7/16
Filed: 1934-09-28
Abstract: Apples, tomatoes, and other fruit are preserved by coating with a thin film of a solution of 1 part by weight of shellac in 6 parts of spirit.  The solution may be prepared by dissolving 1 part of shellac in 2 parts of spirit and diluting before use with 4 parts of spirit, a small amount of castor oil being also added. p  Beeswax or paraffin oil may be added in small amount to the solution, especially when coating fruit with a rough surface such as oranges and lemons.
Patent GB-627859-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F1/38
Filed: 1946-09-17
Abstract: 627,859. Heat - exchangers. FRENKEL, M. S. Sept. 17, 1946, Nos. 27901/46, 35573/46 and 4710/47. [Class 64(iii)] In a heat exchanger, e.g. an oil cooler, an engine radiator or a condenser or evaporator comprising one or more series of secondary heat-transferring vanes 2, 10, 23 connected to a primary heat transferring wall 1 and extending in the direction of flow of a heat exchange fluid past that wall, the vanes, which are each a fraction of the wall in length, are displaced relatively to one another both along the direction of fluid flow so that there is a gap 4 in that direction between successive vanes in each series, and transversely of the direction of fluid flow so that each vane is not aligned in that direction with any other vane. In one form, Fig. 2, the vanes 2 extend between the two parallel walls of a passage of elongated cross-section. In a modification, Fig. 4, the vanes 10 are parallel to the walls 1a and are supported by transverse supports 11a each attached at one end to a wall 1a. The supports 11a may be equal in length to the vanes. Partitions 12 subdivided the passage. In a third form, Fig. 8, comprising two coaxial tubes 20, 21, the vanes 23, which are radial and connect the two tubes, are arranged spirally. The vanes may be plane or curved, e.g. corrugated, and one series may include both plane and curved vanes. Individual vanes may be divided into sections by a gap. The second Provisional Specification describes a modification of the form shown in Fig. 4, in which vanes which are perpendicular to the walls 1a are interposed between the vanes 10. The third Provisional Specification describes a modification of the form of Fig. 8 in which cylinders of different diameters and coaxial with the tubes 20, 21 are interposed between radial vanes.
Patent GB-265110-A (GB)
Title: Improvements in curtain rail supports
IPC: A47H1/144
Filed: 1925-08-22
Abstract: 265,110. French, G. F. Aug. 22, 1925. Brackets; curtains, suspending.-A curtain rail bracket is formed from a length of strip metal bent to provide a horizontal part b, a vertical part a, and an inclined stay member d, the ends c<1>, c<2> of the strip being secured together by an internallv screwed eyelet e to receive a screw f passed through a hole in the rail to clamp it to the bracket. The part a is formed with apertured side lugs g to receive the attaching screws h. Specifications 254,766 and 258,007 ara referred to.
Patent GB-807768-A (GB)
Title: Improvements in and relating to catamenial appliances
IPC: A61L15/34
Filed: 1955-09-30
Abstract: 807,768. Catamenial appliances. JOA, C. G. Sept. 30, 1955, No. 27935/55. Class 81 (2). An absorbent pad for a sanitary napkin coinprises two bats 6, 7 of absorbent material having between them a permeable tissue 9 carrying a series of impermeable stripes 10, these being divided into sections staggered in relation to those in adjacent stripes. The impermeable stripes are preferably made by means of paraffin wax. The two bats are covered with longitudinally creped facing plies 12 and the edges of the pad are cut and compressed so as to cause adhesion of the various layers. The edges of such a pad are covered with channelled strips 15 of paper impregnated with petroleum jelly, which softens in use and lubricates the edges of the gauze wrapper which is placed outside the pad.
Patent GB-590454-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/18
Filed: 1944-04-20
Abstract: 590,454. Knitting-machines. HEMPHILL CO. April 20, 1944, No. 28003/46. Convention date, April 21, 1943. Divided out of 590,410. [Class 74 (ii)] In a circular machine for knitting the heel and toe of a stocking by reciprocatory knitting and in which a body yarn 6 and a pile yarn 8 are fed to the needles, the leading active needle 69 is picked down to engage the body yarn 6 and to separate the two yarns more widely by mechanism comprising a picker 60 arranged between the forward and backward stitch cams 62, 63. A guard cam 61 directs the needle 69 to the picker, which lowers the needle almost to the bottom of the operative stitch cam. The instep needles and inactive heel and toe needles 68 pass above the cam 61 in the normal inoperative path. The picker mechanism is described as applied to the machine described in Specification 590,410. Specifications 20101/09, [Class 74 (ii)], and 590,453 also are referred to.
Patent GB-324686-A (GB)
Title: Improvements relating to the manufacture of railway and tramway rails
IPC: C21D1/84
Filed: 1928-09-29
Abstract: 324,686. Sandberg, C. P., Sandberg, O. F. A., and Sandberg, N. P. P. Sept. 29, 1928. Drawings to Specification. Modifying physical characters of metal.-In the manufacture of rolled railway and tramway rails, the interior and exterior portions of the mass of the rail are caused to have substantially uniform temperatures when the temperature is below the critical range and while the rails cool from above 500‹ C. to about 350‹ C. The cooling process is carried out by enclosing the rails in boxes or under covers or in chambers which may be brick-lined or artificially heated. The cooling down to the point above 500‹ C. may be carried out as described in Specification 18972/14. Specification 192,446 also is referred to.
Patent GB-304301-A (GB)
Title: Improved process for the destructive hydrogenation of carbonaceous materials
IPC: C10G1/08
Filed: 1928-10-01
Abstract: 304,301. Standard Oil Development Co., (Assignees of Haslam, R. T., and Russel, R. P.). Jan. 19, 1928, [Convention date]. Grant of Patent opposed. Hydrogenation, destructive. -Carbonaceous materials e.g. oils, coal suspensions &c. are converted into hydrocarbons of low boiling point by bringing them into intimate contact with hydrogen at high temperatures and pressures while passing through a heating zone, the mixture being then treated in a reaction zone. A portion of the partially converted material may also be withdrawn from the reaction zone, mixed with hvdrogen, reheated and returned thereto. The reaction is preferably conducted in the presence of catalysts e.g. metallic oxides which are circulated with the oil or introduced into the reaction chamber. The plant comprises a tubular heater 4, an insulated reaction drum 1 and heat interchangers and condensers 12, 20, 25. The crude oil is supplied by a pump 7 as desired either through a line 6 to the coil 4 or through a bye-pass 6<a> direct to the drum 1 and is preheated by passing through the exchangers 20, 25. Hydrogen or gases containing hydrogen enter the system through a line 10 and after preheating in the exchanger 12 are mixed with the oil either in a mixer 15 or in the pipe 9. The vapours produced pass off through a pipe 19 and are partially condensed in the exchangers 12, 20, 25, the condensate in the exchanger 12, 20 being returned to the drum 1 through a line 22, the mixer 15 and the heating coil 4. In the plant described the catalyst is circulated in suspension in the oil but in the modification shown in Fig. 2 a second reaction drum 47 is used in which the catalysts are mounted on trays 48. The primary drum is provided with a stirrer 41 and an electric heater 43 while hydrogen is injected directly into both drums through spray heads 45, 54. The final condensates are collected in receivers 27, 33 the surplus hydrogenating gases being separated in a drum 31 and purified before return to the plant by passage through scrubbers 36, 37 containing alkali solution and petroleum respectively for the removal of hydrogen sulphide and methane.
Patent GB-235776-A (GB)
Title: Automatic distribution of current for electric-traction locomotives
IPC: B60M1/10
Filed: 1924-11-24
Abstract: 235,776. Goddaer, V. Nov. 24, 1924. Strikers for operating electric switches on track; systems, sectionalconductor. - In systems with each feeder alternately connected or disconnected at its ends by a trainoperated rotary switch with the main and sub-divided conductors, the switch 8 is actuated against a spring 11 by a rod 9 and ramp 10 which is operated by an auxiliary locomotive member. This member comprises a wheel 12 moved by arms 14 actuated by a nut engaging a worm on one of the locomotive axles so that with ramps placed to one side of the track centre, the wheel will be correctly set for either position of thelocomotive when running in the normal traffic direction.
Patent GB-281684-A (GB)
Abstract: 281,684. Royal Typewriter Co., Inc., (Assignees of Degener, G. 0.). June 10, 1926, [Convention date]. Adding apparatus; attachments to typewriters.-At the end of the key stroke a pawl is thrust into engagement with a numeral wheel of the travelling totalizer three or four places to the left of the wheel receiving actuation and is maintained in engagement during the return of the key. To each spindle 13, rocked by a numeral key, is connected by an arm 16 a sliding bar 17 toothed at 24 to engage a cam gear 21 controlling the actuation of the master wheel. Carried by each gear 21 is a cam 26 adapted to rock an universal spring-controlled flap 27 and so through an arm 29 and pin 30 to operate lever 31 disposed beneath an aligning pawl 38 pivoted at 37 and controlled by a spring 40 and co-operating with a totalizer pinion three or four places to the left of the master wheel. Thus as the 'actuating stroke terminates, the flap is freed by cam 26, and the pin strikes the lever 31 and causes the pawl to engage the pinion. During the return stroke the flap is maintained depressed to keep the pawl in engagement. Specifications 272,467 and 297,717 are referred to.
Patent GB-888019-A (GB)
Title: Milling machine for profiling and/or engraving
IPC: B23Q35/44
Filed: 1958-09-02
Abstract: 888,019. Copy - milling. GAUTHIER G.m.b.H., ALFRED. Sept. 2, 1958 [Sept. 11, 1957], No. 28206/58. Addition to 860,799. Class 83 (3). In the template-controlled copy-milling or engraving machine of the parent Specification the movable control templates comprise a number of separate components 53-55. These are secured adjustably to holders 11 by clamps (not shown). The cams are traversed by abutments 17 and rock about pivots 13. The holder is pressed towards the cam by a spring 15, and movement limited by engagement between an abutment 59 on the holder and an adjustable stop 57a on a tube 162 carried by the machine-bed 1. Adjustment of the stop along the tube is by a screw-threaded shaft 159 engaging the stop, which is grooved to engage a pin 163 on the tube.
Patent GB-861493-A (GB)
Title: Improvements in the fixing of metal caps on metal rods
Inventor: MARKS FREDERICK WILLIAM
IPC: H01R43/042
Filed: 1958-09-03
Abstract: 861,493. End capping rods and tubes; forging. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 24, 1959 [Sept. 3, 1958], No. 28270/58. Class 83 (4). A method of fitting a metal cap on a metal rod or cable, e.g. in joining the electrical connection to the anode rod of a crystal rectifier, comprises positioning a metal cap 1 having one or more protrusions 3 on its outer peripheral surface on the rod 2 and forcing the assembly of cap and rod through an aperture or die 5 by means of a push rod 8 to deform the protruding metal inwardly and establish a tight frictional engagement of the cap on the rod.